MacRumors posted a story that Geek.com highlighted a growing a number of complaints from owners of Apple's 15-inch Retina MacBook Pro regarding overactive fans

The issue has been noted in our forums and is the subject of a lengthy thread in Apple's discussion forums. From one report:My first instance of runaway fans was under the lightest of conditions, having only one browser open only a few tabs and a cool computer. The fact it was cold is what is so alarming. Out of nowhere the fans spun up to a roar, stayed there for a few minutes, then decelerated back down to idle.